EP1470975A3 - Rain sensor, in particular for a motor vehicle - Google Patents

Rain sensor, in particular for a motor vehicle Download PDF

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Publication number
EP1470975A3
EP1470975A3 EP03028200A EP03028200A EP1470975A3 EP 1470975 A3 EP1470975 A3 EP 1470975A3 EP 03028200 A EP03028200 A EP 03028200A EP 03028200 A EP03028200 A EP 03028200A EP 1470975 A3 EP1470975 A3 EP 1470975A3
Authority
EP
European Patent Office
Prior art keywords
radiation
motor vehicle
rain sensor
path
measuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03028200A
Other languages
German (de)
French (fr)
Other versions
EP1470975B1 (en
EP1470975A2 (en
Inventor
Helmut Sautter
Armin Jerger
Frank Wolf
Vincent Thominet
Zishao Yang
Gerhard Hohenbleicher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1470975A2 publication Critical patent/EP1470975A2/en
Publication of EP1470975A3 publication Critical patent/EP1470975A3/en
Application granted granted Critical
Publication of EP1470975B1 publication Critical patent/EP1470975B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0833—Optical rain sensor
    • B60S1/084—Optical rain sensor including a hologram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means

Abstract

Es wird ein Regensensor (10), insbesondere für ein Kraftfahrzeug vorgeschlagen, der eine Messstrecke (34) aufweist, die zumindest aus einem Sendemittel (12) zur Emission von Strahlung und einem Empfängermittel (32) zur Detektion von Strahlung gebildet ist, wobei innerhalb der Messstrecke (34) eine Scheibe () mit mindestens einer Oberfläche (22) derart angeordnet ist, dass die Ausbreitung der Strahlung durch auf der Oberfläche (22) befindliche Feuchtigkeit beeinflusst ist. Erfindungsgemäß ist zumindest ein einziges holographisches Element (20) zur Führung der Strahlung vorgesehen ist, das auf und/oder in der Scheibe (11) angeordnet ist, und die Strahlung (14) in Richtung der Oberfläche (22) derart ablenkt, dass ein Strahlungspfad (21) entsteht, der bei einer Projektion auf die Oberfläche (22) einen Winkel (Alpha) einschließt.

Figure 00000001
A rain sensor (10) is proposed, in particular for a motor vehicle, which has a measuring path (34) which is formed at least from a transmitting means (12) for emitting radiation and a receiver means (32) for detecting radiation, wherein Measuring section (34) a disc () with at least one surface (22) is arranged such that the propagation of the radiation is influenced by moisture on the surface (22). According to the invention, at least one single holographic element (20) is provided for guiding the radiation which is arranged on and / or in the pane (11) and deflects the radiation (14) in the direction of the surface (22) in such a way that a radiation path (21), which forms an angle (alpha) when projected onto the surface (22).
Figure 00000001
EP20030028200 2003-03-31 2003-12-09 Rain sensor, in particular for a motor vehicle Expired - Lifetime EP1470975B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10314704 2003-03-31
DE2003114704 DE10314704A1 (en) 2003-03-31 2003-03-31 Rain sensor for a motor vehicle has a measured section made up of a transmitter for emitting rays and a receiver for detecting rays

Publications (3)

Publication Number Publication Date
EP1470975A2 EP1470975A2 (en) 2004-10-27
EP1470975A3 true EP1470975A3 (en) 2005-04-20
EP1470975B1 EP1470975B1 (en) 2007-07-18

Family

ID=32946360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030028200 Expired - Lifetime EP1470975B1 (en) 2003-03-31 2003-12-09 Rain sensor, in particular for a motor vehicle

Country Status (3)

Country Link
EP (1) EP1470975B1 (en)
DE (2) DE10314704A1 (en)
ES (1) ES2287404T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004050765A1 (en) * 2004-10-16 2006-04-27 Robert Bosch Gmbh Optical sensor for detecting moisture on a window of a motor vehicle
DE102013210887B4 (en) 2013-06-11 2019-12-12 Robert Bosch Gmbh Optical sensor arrangement for a vehicle and vehicle with such a sensor arrangement
GB201714591D0 (en) * 2017-09-11 2017-10-25 Pilkington Group Ltd Mist sensor and glazing incorporating a mist sensor
DE102018209020A1 (en) * 2018-06-07 2019-12-12 Robert Bosch Gmbh Device, designed to detect contamination of at least one transmission window and / or a receiving window of a sensor
DE102018209015A1 (en) * 2018-06-07 2019-12-12 Robert Bosch Gmbh Device and method for detecting contamination of at least one transmission window and / or a receiving window of a sensor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0999104A2 (en) * 1998-11-02 2000-05-10 Central Glass Company, Limited Water droplet sensor and exposure system for hologram
JP2000193589A (en) * 1998-12-28 2000-07-14 Central Glass Co Ltd Raindrop detector
EP1182445A2 (en) * 1995-09-29 2002-02-27 Georgia Tech Research Corporation Integrated optic interferometric sensor
EP1195598A2 (en) * 2000-10-05 2002-04-10 HSM Holographic Systems München GmbH Humidity sensor
WO2003004321A1 (en) * 2001-07-06 2003-01-16 Robert Bosch Gmbh Optical sensor for detecting moisture on a surface

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1182445A2 (en) * 1995-09-29 2002-02-27 Georgia Tech Research Corporation Integrated optic interferometric sensor
EP0999104A2 (en) * 1998-11-02 2000-05-10 Central Glass Company, Limited Water droplet sensor and exposure system for hologram
JP2000193589A (en) * 1998-12-28 2000-07-14 Central Glass Co Ltd Raindrop detector
EP1195598A2 (en) * 2000-10-05 2002-04-10 HSM Holographic Systems München GmbH Humidity sensor
WO2003004321A1 (en) * 2001-07-06 2003-01-16 Robert Bosch Gmbh Optical sensor for detecting moisture on a surface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 10 17 November 2000 (2000-11-17) *

Also Published As

Publication number Publication date
ES2287404T3 (en) 2007-12-16
DE50307696D1 (en) 2007-08-30
EP1470975B1 (en) 2007-07-18
EP1470975A2 (en) 2004-10-27
DE10314704A1 (en) 2004-10-14

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